JPG to WEBP Converter

Why convert JPG to WEBP?

WEBP is Google’s image format designed specifically for the web. At the same visual quality it produces files 25–35% smaller than JPG, sometimes more on noisy photos. Smaller images mean faster pages, lower bandwidth bills, and better Core Web Vitals — which Google uses as a ranking signal.

JPG vs WEBP: when each wins

How to convert JPG to WEBP

1. Drop your JPG / JPEG files — drag onto the upload zone, click to browse, or paste from clipboard. Up to 30 at once.
2. Pick a quality — 85% is the web default. Drop to 70–75% for thumbnails; raise above 90% only when the result will be edited further.
3. Click Convert — encoding runs locally with the Canvas API. Your files stay on your device.
4. Download — one by one, or all at once as a ZIP.

Quality settings: what to pick

• 90–95%: archival, hero images, or when downstream editing is expected. File savings shrink at this end but are still meaningful.
• 80–90%: the web sweet spot. Visually indistinguishable from the source JPG for almost all photos.
• 60–75%: aggressive compression for thumbnails, list images, or bandwidth-constrained delivery.
• Below 60%: visible blockiness on photos. Acceptable only for previews or placeholders.

A note on re-encoding

JPG and WEBP are both lossy. Every re-encode loses a tiny bit of information — typically invisible at 85% quality, but it accumulates if you re-export the same file repeatedly. For best results, convert from the highest-quality JPG you have, and never round-trip JPG → WEBP → JPG when you can avoid it.

Serving WEBP with a JPG fallback

~3% of users are still on browsers without WEBP support. Use the <picture> element to serve both:

<picture>
  <source srcset="hero.webp" type="image/webp" />
  <img src="hero.jpg" alt="..." />
</picture>

Privacy

Every byte stays in your browser. No upload, no temporary server file, no log. The conversion runs in a <canvas> element using the browser’s built-in WEBP encoder.

Frequently asked questions